BU4001B Datasheet, PDF (3/4 Pages) Rohm – Quad 2-input NOR gate

Standard ICs
BU4001B / BU4001BF
Switching characteristics (unless otherwise noted, VSS = 0V, Ta = 25°C, CL = 50pF)
Parameter
Symbol Min. Typ. Max. Unit
VDD (V)
—
180
—
5
Output rise time
tTLH
—
90
—
ns
10
—
65
—
15
—
100
—
5
Output fall time
tTHL
—
50
—
ns
10
—
40
—
15
—
90
—
5
Propagation delay time,
tPLH
—
50
—
ns
10
“L” to “H”
—
40
—
15
—
90
—
5
Propagation delay time,
tPHL
—
50
—
ns
10
“H” to “L”
—
40
—
15
Input capacitance
CIN
—
5
—
pF
—
Conditions
Measurement
circuit
—
Fig.2
—
Fig.2
—
Fig.2
—
Fig.2
—
—
•^{Measurement circuits}
VDD
A
V
P.G
GND
Fig.1 DC characteristics
•^{Electrical characteristic curve}
1200
DIP14
1000
VDD
20ns
20ns
Input
CL = 50pF
Output
GND
90%
50%
10%
tPHL _90%
tPLH
50%
10%
tTHL
tTLH
Fig.2 Switching characteristics
800
600
SOP14
400
200
0
0 25 50 75 100 125 150
AMBIENT TEMPERATURE: Ta (°C)
Fig.3 Power dissipation vs. Ta
characteristic
3